Weakness (CWE)
CWE-674: Uncontrolled Recursion
The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.
How to prevent it (2 mitigations)
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Implementation
Ensure that an end condition will be reached under all logic conditions. The end condition may include checking against the depth of recursion and exiting with an error if the recursion goes too deep. The complexity of the end condition contributes to the effectiveness of this action.
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Implementation
Increase the stack size.
Source: MITRE CWE-674
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Medium 6.5CVE-2026-73321 Public exploit
XenForo < 2.3.13 Uncontrolled Recursion DoS via BBCode Parser
XenForo before 2.3.13 contains an uncontrolled recursion vulnerability in the BBCode parser that allows authenticated attackers to cause persistent denial of service by submitting a post with deeply nested BBCode tags. Attackers can craft a single malicious p…
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Medium 4.3CVE-2026-33532 Public exploit
yaml is vulnerable to Stack Overflow via deeply nested YAML collections
`yaml` is a YAML parser and serialiser for JavaScript. Parsing a YAML document with a version of `yaml` on the 1.x branch prior to 1.10.3 or on the 2.x branch prior to 2.8.3 may throw a RangeError due to a stack overflow. The node resolution/composition phase…
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Medium 6.2CVE-2026-33320 Public exploit
Dasel has unbounded YAML alias expansion in dasel leads to CPU/memory denial of service
Dasel is a command-line tool and library for querying, modifying, and transforming data structures. Starting in version 3.0.0 and prior to version 3.3.1, Dasel's YAML reader allows an attacker who can supply YAML for processing to trigger extreme CPU and memo…
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Medium 6.5CVE-2025-36001 Public exploit
IBM Db2 Denial of Service
IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5.0 - 11.5.9 and 12.1.0 - 12.1.3 could allow an authenticated user to cause a denial of service using a specially crafted SQL statement including XML that performs uncontrolled recursion.
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Medium 6.5CVE-2025-50420 Public exploit
An issue in the pdfseparate utility of freedesktop poppler v25.04.0 allows attackers to cause an infinite recursion via…
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Medium 6.5CVE-2025-46206 Public exploit
An issue in Artifex mupdf 1.25.6, 1.25.5 allows a remote attacker to cause a denial of service via an infinite recursio…
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Medium 5.3CVE-2025-48924 Public exploit
Apache Commons Lang, Apache Commons Lang: ClassUtils.getClass(...) can throw a StackOverflowError on very long inputs
Uncontrolled Recursion vulnerability in Apache Commons Lang. This issue affects Apache Commons Lang: Starting with commons-lang:commons-lang 2.0 to 2.6, and, from org.apache.commons:commons-lang3 3.0 before 3.18.0. The methods ClassUtils.getClass(...) can thr…
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Medium 6.5CVE-2022-25313 Public exploit
In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting depth…
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Medium 5.9
Apache Log4j2 does not always protect from infinite recursion in lookup evaluation
Apache Log4j2 versions 2.0-alpha1 through 2.16.0 (excluding 2.12.3 and 2.3.1) did not protect from uncontrolled recursion from self-referential lookups. This allows an attacker with control over Thread Context Map data to cause a denial of service when a craf…